The Republic of Estonia in 1918-1940: the annexation of Estonia in 1940

While the German army was fighting successful battles in the Western Europe, Soviet leadership decided to fully incorporate the Baltic states. In June 1940, large Red Army troops were rallied to the Estonian-Russian border, and Estonian government was forced to give in to the Soviet Union's harsh ultimatum.With the help of the Red Army, new, Moscow-supporting government was formed, and "elections" were organized, where the red election coalition gained a landslide victory. On Juley 21, 1940, newly elected lower chamber of the Parliament (Riigivolikogu) declared Estonia a soviet republic and pledged the Estonian SSR to be accepted to the Soviet Union, and the formal and juridical fulfilment of this request on August 6, 1940, ended the process of the annexation of Estonia.